68224831 has 16 divisors (see below), whose sum is σ = 74280960. Its totient is φ = 62472960.

The previous prime is 68224829. The next prime is 68224837. The reversal of 68224831 is 13842286.

It is a cyclic number.

It is not a de Polignac number, because 68224831 - 2¹ = 68224829 is a prime.

It is a super-2 number, since 2×68224831² = 9309255129957122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68224837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72975 + ... + 73903.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2^68224831 is an apocalyptic number.

68224831 is a deficient number, since it is larger than the sum of its proper divisors (6056129).

68224831 is a wasteful number, since it uses less digits than its factorization.

68224831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its digits is 18432, while the sum is 34.

The square root of 68224831 is about 8259.8323832872. The cubic root of 68224831 is about 408.6148597320.

The spelling of 68224831 in words is "sixty-eight million, two hundred twenty-four thousand, eight hundred thirty-one".